"The Wall Street Journal examined 156 criminal and civil cases brought by the Justice Department, Securities and Exchange Commission and Commodity Futures Trading Commission against 10 of the largest Wall Street banks since 2009. In 81% of those cases, individual employees were neither identified nor charged... analysis shows not only the rarity of proceedings brought against individual bank employees, but also the difficulty authorities have had winning cases they do bring.... One of the few successful government cases was overturned Monday [May 23, 2016]."
http://www.wsj.com/articles/wall-street-crime-7-years-156-ca...
"The Wall Street Journal examined 156 criminal and civil cases brought by the Justice Department, Securities and Exchange Commission and Commodity Futures Trading Commission against 10 of the largest Wall Street banks since 2009. In 81% of those cases, individual employees were neither identified nor charged... analysis shows not only the rarity of proceedings brought against individual bank employees, but also the difficulty authorities have had winning cases they do bring.... One of the few successful government cases was overturned Monday [May 23, 2016]."